This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A black hole is _____. a. an object so dense that light cannot escape its surface b. a neutron ... (Read 60 times)

nautica902

  • Hero Member
  • *****
  • Posts: 591
on: Jul 27, 2018
A black hole is _____.
 
  a. an object so dense that light cannot escape its surface
  b. a neutron star that has exceeded the Chandrasekhar limit
  c. a theoretical model that has never been observed
 d. an observed object that is not well understood
  e. the result of a neutron star merger

Question 2

Ptolemy tried to describe the motion of the planets by devising a small circle, called a(n) ____, which rotated around the edge of a larger circle.
 
  a. epicycle
  b. foci
 c. deferent
  d. equant
 e. sphere


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

a

Answer to Question 2

a


nautica902

  • Hero Member
  • *****
  • Posts: 591
Reply #2 on: Jul 27, 2018
Thanks


livaneabi

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Tri parti-colored (white, brown and black) guinea pig in its natural habitat. Tri parti-colored (white, brown and black) guinea pig in its natural habitat.
The Sun as it appears from the surface of Earth during the middle of the day The Sun as it appears from the surface of Earth during the middle of the day
The Sun as it appears from the surface of the Earth at Sunset. The Sun as it appears from the surface of the Earth at Sunset.
Surface Offset on San Andreas Fault Surface Offset on San Andreas Fault
The gaping hole in the destroyer USS Cole, in the port of Aden, Yemen, was the work of suicide bombe The gaping hole in the destroyer USS Cole, in the port of Aden, Yemen, was the work of suicide bombe
Light Blue Eye Color Light Blue Eye Color
Video: Antidiuretic hormone (vasoconstriction, water reabsorption & sweat inhibition)

For a complete list of videos, visit our video library